DIN 17182 Grade GS-20Mn5 quenched and tempered (+QT)

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Description

In comparison to the unalloyed cast steel grades according to DIN 1681, the materials of this group show distinctly higher values of the notch impact energy. As a result of their low carbon content (0.23 per cent maximum), they are well suitable for welding. By liquid quenching and tempering, the connection of this material to the micro-alloyed fine-grain structural steels, which this cast steel grade is to be used together with in welded composite constructions, can be achieved for wall thicknesses of up to 40 mm.

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValueComment

Density

23.0 °C

8.8 g/cm³

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Typical for Nickel Steel

Mechanical

PropertyTemperatureValueComment

Elastic modulus

23.0 °C

200 - 215 GPa

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Typical for Nickel Steel

Elongation

20.0 °C

22 - 24 %

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Poisson's ratio

23.0 °C

0.29 [-]

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Typical for Nickel Steel

Shear modulus

23.0 °C

76 GPa

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Typical for Nickel Steel

Tensile strength

20.0 °C

500 - 650 MPa

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Yield strength

20.0 °C

280 - 360 MPa

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Thermal

PropertyTemperatureValueComment

Max service temperature, long

0 - 300 °C

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Melting point

1316 - 1595 °C

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Typical for Nickel Steel

Specific heat capacity

23.0 °C

456 J/(kg·K)

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Typical for Nickel Steel

Thermal conductivity

23.0 °C

10 - 50 W/(m·K)

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Typical for Nickel Steel

Chemical properties

PropertyValue

Carbon

0.17 - 0.23 %

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Chromium

0.3 %

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Manganese

1 - 1.5 %

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Molybdenum

0.15 %

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Nickel

0.4 %

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Phosphorus

0.02 %

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Silicon

0.6 %

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Sulfur

0.015 %

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